However, the past century has seen unprecedented progress in extending human lifespans ... the inevitability of old age.

The alternative is stagnation – a scientific Dark Age that threatens to undo decades of progress and innovation. Paul N. Black, Ph.D., is the Charles Bessey professor and chair of Biochemistry ...

This is an age of progress, but it is an age which favors smooth and rapid progress, and is intolerant of jolting and jarring. It has sickened of the intolerable nuisance of stone blocks and ...